Composite display device and a method for driving the same

Abstract

A composite display device comprising a first display member 1 and a second display member disposed between the first display member 1 and an observer 14 wherein the second display member is an electro-optical element 2 which transmits light under application of no voltage and scatters light under application of a voltage, and the composite display device is clear and provides a feeling of open air in an unused state: allows an observer to see simultaneously a background scenery and a display effected by the electro-optical element in a used state, and provides to an observer an impression that a picture image is suspended in space.

Dependencies are inferred from the claim text.